Arrangement in installations for collection of garbage and other refuse

ABSTRACT

An apparatus for the collection of garbage in outer receptacles having rigid sides in a truncated sector or trapezoidal cross section, arranged to detachably hold an inner bag-shaped container and locking means to hold said inner bag-shaped container within said outer receptacles, said locking means comprising an extension of the narrowmost side of said outer receptacle having a plate pivotally mounted thereon above the upper rim of said receptacle, said plate extending slightly below the upper rim of said receptacle and having legs of a certain resilience attached thereto adjacent to its lower edge and adjacent to the sides of said outer receptacle which extend substantially along at least two rims of said outer receptacle, said pivotable plate and legs when in the downwardmost position frictionally engaging said outer receptacle along at least three rims thereof.

United States Patent Lundgren ARRANGEMENT IN INSTALLATIONS FORCOLLECTION OF GARBAGE AND OTHER REFUSE Gunnar Arne Leonard Lundgren,Brottby, Sweden Assignee: Komprimator AB, Vallentuna, Sweden Filed: July23, 1970 Appl. No.: 57,474

Inventor:

References Cited UNITED STATES PATENTS 9/1927 Florance ..220/1 T l/ 1965Resos ..220/23.4 9/1968 Busey ..220/63 R 3,451,582 l/1969 Morgan..220/65X Primary ExaminerGeorge E. Lowrance Attorney-Hammond & Littell[57] ABSTRACT An apparatus for the collection of garbage in outerreceptacles having rigid sides in a truncated sector or trapezoidalcross section, arranged to detachably hold an inner bagshaped containerand locking means to hold said inner bagshaped container within saidouter receptacles, said locking means comprising an extension of thenarrowmost side of said outer receptacle having a plate pivotallymounted thereon above the upper rim of said receptacle, said plateextending slightly below the upper rim of said receptacle and havinglegs of a certain resilience attached thereto adjacent to its lower edgeand adjacent to the sides of said outer receptacle which extendsubstantially along at least two rims of said outer receptacle, saidpivotable plate and legs when in the downwardmost position frictionallyengaging said outer receptacle along at least three rims thereof.

5 Claims, 4 Drawing Figures PATENTEUMR 14 m2 SHEET 1 OF 3 /NVEA/7'0RGUNNAR Anus leomno lunlacuzlv fi m/ I Ava/mars PATENTEDMAR 14 m2 SHEET 2[IF 3 N VE N TOR Gunman Anus ln/vm two/nun By y AT7'0RNEYs ARRANGEMENTIN INSTALLATIONS FOR COLLECTION OF GARBAGE AND OTHER REFUSE The presentinvention relates to installations for collection of garbage and otherrefuse and of the type comprising receptacles of steel or other suitablematerial arranged in fixed position one at the side of the other, eachreceptacle designed to detachably support an inner bag-shaped containerof plastic material or paper by means of locking means of such a kindand of such a design that in operating condition it gives the innercontainer inserted into the outer receptacle a shape in any casesubstantially corresponding the shape of the outer receptacle.

It is an object of the invention to provide an improved locking meansfor the inner bagshaped container, facilitating the fastening of emptybags as well as the loosening of filled bags.

Another object of the invention is to provide greater possibilities toavoid that garbage unintentionally escapes over the rear rim of theouter rigid receptacle.

The improved arrangement is characterized by the locking means of theinner bagshaped container being pivotally arranged around a jointlocated at the rear of the outer receptacle above the rim thereof, andby the rear portion on said means being shaped as a plate, to whichlegs, having a certain resilience, are connected in such a way that thelocking means forms a closed unit and in an in itself known manner bymeans of friction holds the inner container in fixed position to theinside of the outer receptacle.

The accompanying drawings illustrate an embodiment of the invention andthe following description deals with details thereof as well as withadditional characteristics of the invention.

FIG. 1 is a perspective view of an example of an installation accordingto the invention, where a number of receptacles are arranged one at theside of the other on a circular platform.

FIG. 2 is a perspective view of a receptacle for garbage entering intothe assembly, the interior container being hinted.

FIG. 3 is a cross-sectional view along the line IIIIII in FIG. 2.

FIG. 4 is a cross-sectional view along the line IVIV in FIG. 2.

The illustrated installation for collection of garbage will now bebriefly described with reference to FIG. 1. A circular platform isrotatable around a centric shaft not shown and supports (carries) anumber of garbage receptacles ll of steel or other rigid materialsubstantially of conical design and located in an arrangement one at theside of the other. The outward facing end of each receptacle 11 isformed as a door 12. The respective door 12 of two adjacent receptaclesis pivotable in opposite directions around a common axis 13. The loweredge of each door 12 in closed condition bears against the rear side ofan upright flange 14 of the platform 10. By the door, being carried onthe axis 13 by means of vertically displaceable sleeves 15, it ispossible to open it by an upwards directed force being applied on thehandle 16 in FIG. 1 as indicated by the arrow F. Near its lower hingebush the door 12 is chamfered at 17, the door 12 thereby in openedcondition being pivotable a certain distance. The door mechanismdescribed is of essential importance, which will be more evident inconnection with the description of the functioning of the installation.

The garbage can be manually fed into the installation or via a guidingdrum 18, which is in connection with a chute 19 in a building. However,the receptacle 11 is not directly receiving the garbage, as for thispurpose each receptacle 11 is provided with a bag-shaped inner container20 made of plastic material, paper or any other suitable material, whichby means of locking means can be fixed within the receptacle 11 duringthe filling phase and which in filled condition can be removed from thereceptacle 11 and be substituted by an empty bag. The inner container 20has substantially the same outer dimensions as the inner dimensions ofthe outer receptacle 1 l, but vertically it extends preferably above theupper rim of the respective receptacle 1].

As best can be seen in FIG. 2 which illustrates a single outerreceptacle 11 in which an inner container 20 has been inserted, the rearwall 2l of said receptacle 11 is provided with a plate 22 extendingalong the whole or a portion of the length of the wall 21 and whichvertically extends above the upper rim of the outer receptacle 11. Theplate 22 by this arrangement constitutes a prolongation of the rear wall21 of the receptacle l1. Reinforcing means 23, 24 are arrangedperpendicularly relative to each other in order to support the plate 22.At the upper end of the plate 22, which end is facing the center of theouter receptacle 11, a hingelike means 25 is attached with one of itsends. The opposite side of the means 25 is attached to the upper end ofa bracket plate 26, which thereby is pivotable a certain angle aroundthe joint 25 located above the upper rim of the outer receptacle 1]. Thebracket plate 26 is rigidly connected with legs 27 arranged at its lowerportion, which legs have the shape of fairly narrow flat bars and whichhave a certain resiliency. The legs 27 form a closed unit, whichsubstantially corresponds the inner contour of the receptacle 1]. By thelegs 27, which in operating condition bear level to the upper rim of thereceptacle 11 or preferably slightly below said rim, being connectedwith the bracket plate 26, said plate 26, said plate 26 and the legsform a unit constituting the locking means, which is pivotable from anoperating position (FIG. 2) to a resting position (FIG. 1

When inserting an empty inner container 20, which is open at its top, inthe outer receptacle 11, the locking means 26, 27 has been manuallypivoted occupying a folded up position (FIG. 1). The upper edge of thecontainer 20 thereby extends above the upper rim of the receptacle 11(FIG. 2). When the locking means (26,27) is pivoted downwards, it willarrive in a position inside the upper portion of the bag 20, therebypressing the bag 20 to bear against the inside of the outer receptacle11. By said receptacle 11 being provided with warts 28 or other means(elements) increasing the friction, the inner container 20 is firmlyretained irrespective of the garbage being manually fed to thiscontainer or it being fed via the guiding chute 18. In the lastmentioned case the stress on the inner container is substantiallygreater. Still greater stresses arise in those cases, when aninstallation according to the illustrated embodiment is provided withmeans for compressing the garbage in each container, it therefore beingan important requisite that the locking means 26,27 function in a mostefficient manner, and as tests carried out under practical conditionshave proved, the arrangement according to the invention gives a mostsatisfactory performance under all conditions.

The suspension of the doors 12 described in connection with FIG. 1 is ofimportance, especially when said hinted means, not shown in thedrawings, for compressing the garbage are used, as in such a case it isevident that comparatively large stresses directed sidewise will arise.

The legs 27 of the locking means are arranged in operating condition topress the inner container 20 against stopping elements 29 of the outerreceptacle 11, on top of which stopping elements also the legs 27 rest.

As can be seen in FIG. 4 the element 26 in the embodiment illustrateddoes not take part in holding the inner container 20, this only beingdone by the legs 27 by means of the warts 29 and also by means of thestopping elements 29.

The extension plate 22 contributes to preventing the garbage fromspilling out unintentionally over the rear rim.

What I claim is:

1. An apparatus for the collection of garbage in outer receptacleshaving rigid sides in a truncated sector or trapezoidal cross section,arranged to detachably hold an inner bagshaped container and lockingmeans to hold said inner bagshaped container within said outerreceptacles, said locking means comprising an extension of thenarrowmost side of said outer receptacle having a plate pivotallymounted thereon above the upper rim of said receptacle, said plateextending slightly below the upper rim of said receptacle and havinglegs of a certain resilience attached thereto adjacent to its lower edgeand adjacent to the sides of said outer receptacle which plate and legsin said downwardmost position.

4. The apparatus of claim 1 wherein the top of said outer receptacle onits narrowmost side has detents which cooperate with detents on saidpivotable plate.

5. The apparatus of claim 1 wherein said legs extend along at least twosides of said outer receptacle along their top when said pivotable plateis in its downwardmost position.

* i t t

1. An apparatus for the collection of garbage in outer receptacleshaving rigid sides in a truncated sector or trapezoidal cross section,arranged to detachably hold an inner bag-shaped container and lockingmeans to hold said inner bagshaped container within said outerreceptacles, said locking means comprising an extension of thenarrowmost side of said outer receptacle having a plate pivotallymounted thereon above the upper rim of said receptacle, said plateextending slightly below the upper rim of said receptacle and havinglegs of a certain resilience attached thereto adjacent to its lower edgeand adjacent to the sides of said outer receptacle which extendsubstantially along at least two rims of said outer receptacle, saidpivotable plate and legs when in the downwardmost position frictionallyengaging said outer receptacle along at least three rims thereof.
 2. Theapparatus of claim 1 wherein said pivotable plate and said legsencompass all rims of said outer receptacle.
 3. The apparatus of claim 1wherein said outer receptacle is provided with at least one innerextension on at least one side of the topmost part thereof which engageswith said pivotable plate and legs in said downwardmost position.
 4. Theapparatus of claim 1 wherein the top of said outer receptacle on itsnarrowmost side has detents which cooperate with detents on saidpivotable plate.
 5. The apparatus of claim 1 wherein said legs extendalong at least two sides of said outer receptacle along their top whensaid pivotable plate is in its downwardmost position.